function Waiter(id,name,pay){
    Staff.call(this,id,name,pay)
    this.type = 1 // 服务员类型
    this.w_status = 0  // 0空闲1送菜单2送菜中
    this.position  = 0 // 0服务员位置 1厨师位置
}
Waiter.prototype.tell = function(menu,cooker){//通知做菜
    console.log(menu,cooker)
    cooker.cookList = menu.concat()
    this.w_status = 1
    this.position = 1
}
Waiter.prototype.sendDish = function(){//送菜
    setTimeout(()=>{
      
    },1000*2)

}